.plate-ul .plate-ul-li:nth-child(9) a{
    color: #ff8c1b;
} 
.bigimg{
    width: 100%;
    min-width: 1170px;
    height: 540px;
    background-image: url(../images/bg-app.png);
    background-repeat: no-repeat;
}
.bigimg .bigimg-heart{
   width: 800px;
   margin: 0 auto;
   display: table;
}
.bigimg-left{
    display: table-cell;
    padding-right: 40px;
}
.bigimg-left img{
    margin-top: 32px;
}
.bigimg-right{
    display: table-cell;
    text-align: center;
}
.bigimg-right h2{
    color: #eee;
    font-size: 40px;
}
.bigimg-right p{
    color: #eee;
    margin-bottom: 10px;
}
.course{
    padding: 100px 0;
    background-color: #fff;
    width: 100%;
    min-width: 1170px;
}
.course-heart{
    width: 800px;
    margin: 0 auto;
    display: table;
}
.course-left{
    display: table-cell;
}
.course-left h2{
    font-size: 32px;
    font-weight: bold;
}
.course-left img{
    margin-bottom: 18px;
}
.course-left-ul{
    list-style: disc;
    margin-left:20px;
}
.course-left-ul .course-left-ul-li{
    font-size: 20px;
    color: #666;
}
.course-left-ul .course-left-ul-li::marker{
    color: #666;
    font-size: 20px;
}
.course-right{
    display: table-cell;
}
.activity{
    padding: 100px 0;
    min-width:1170px;
    width: 100%;
}
.activity-heart{
    width: 800px;
    display: table;
    margin: 0 auto;
}
.activity-left{
    display: table-cell;
}
.activity-right{
    display: table-cell;
}

.activity-right h2{
    font-size: 32px;
    font-weight: bold;
}
.activity-right img{
    margin-bottom: 18px;
}
.activity-right-ul{
    list-style: disc;
    margin-left:20px;
}
.activity-right-ul .activity-right-ul-li{
    font-size: 20px;
    color: #666;
}
.activity-right-ul .activity-right-ul-li::marker{
    color: #666;
    font-size: 20px;
}
h2 a:hover{
    color: #ff8c1b;
}

